Remote controller check displays ERC - Data errors found on transmission line

What does ERC mean?

The Mitsubishi Electric PUMY Air Conditioner remote controller check detected a discrepancy in the number of bits between the data transmitted by the remote controller and the data actually received over the transmission line. This indicates data corruption or communication issues.

• External noise interference on the communication transmission line
• Faulty or damaged communication wiring
• General communication line issues

Click steps to track your progress.

1. 1

   Note the ERC error displayed on the remote controller check screen.

2. 2

   Power off the Mitsubishi Electric PUMY Air Conditioner system at the main electrical breaker.

3. 3

   Wait for at least 30 seconds, then restore power to the system.

4. 4

   If the error persists, contact a qualified service technician to check the transmission line for external noise interference or wiring damage.